1. Use shortcut key: After the reference statement is input, press Ctrl, Shift and equal sign on the keyboard at the same time, and you can see that the input cursor behind the statement has moved to the upper right corner of the text.

2. Use the superscript button: After entering the quoted sentence, click the superscript button in the document (or the shortcut key Ctrl+Shift+= for superscript input), and then enter the number or symbol in the upper right corner.